90245553 has 8 divisors (see below), whose sum is σ = 123579648. Its totient is φ = 58537584.

The previous prime is 90245549. The next prime is 90245579. The reversal of 90245553 is 35554209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90245553 - 2² = 90245549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90245513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406401 + ... + 406622.

It is an arithmetic number, because the mean of its divisors is an integer number (15447456).

Almost surely, 2^90245553 is an apocalyptic number.

It is an amenable number.

90245553 is a deficient number, since it is larger than the sum of its proper divisors (33334095).

90245553 is a wasteful number, since it uses less digits than its factorization.

90245553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813063.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 90245553 is about 9499.7659444852. The cubic root of 90245553 is about 448.5476683997.

The spelling of 90245553 in words is "ninety million, two hundred forty-five thousand, five hundred fifty-three".